/Engine/Source/Runtime/Engine/Classes/Components/InstancedStaticMeshComponent.h
Build the data to compute accuracte StreaminTexture data.
virtual bool BuildTextureStreamingDataImpl ( ETextureStreamingBuildType BuildType, [EMaterialQualityLevel::Type](API\Runtime\Engine\EMaterialQualityLevel__Type) QualityLevel, [ERHIFeatureLevel::Type](API\Runtime\RHI\ERHIFeatureLevel__Type) FeatureLevel, [TSet](API\Runtime\Core\Containers\TSet)< [FGuid](API\Runtime\Core\Misc\FGuid) > & DependentResources, bool & bOutSupportsBuildTextureStreamingData )